CVE-2011-3375

Apache Tomcat Exposes IP Addresses and HTTP Headers of Requests

5.0 MediumFix available

Apache Tomcat 6.0.30 through 6.0.33 and 7.x before 7.0.22 does not properly perform certain caching and recycling operations involving request objects, which allows remote attackers to obtain unintended read access to IP address and HTTP header information in opportunistic circumstances by reading TCP data.

Exploit likelihood

6.33%Up 5.2 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

Record: CVE-2011-3375
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

CVE List No score

Record: CVE-2011-3375
Updated: 2026-11-02

EUVDEUVD-2022-5209 No score

Record: EUVD-2022-5209
Updated: 2026-11-03

GitHub AdvisoriesGHSA-rp8h-vr48-4j8p No score

Apache Tomcat Exposes IP Addresses and HTTP Headers of Requests

Record: GHSA-rp8h-vr48-4j8p
Weakness: CWE-200
Updated: 2026-11-02

OSVGHSA-rp8h-vr48-4j8p No score

Apache Tomcat Exposes IP Addresses and HTTP Headers of Requests

Record: GHSA-rp8h-vr48-4j8p
Weakness: CWE-200
Updated: 2026-11-02

Affected products

apache tomcat

Affected packages

Affected packages
Package	Affected	Fixed
`org.apache.tomcat:tomcat` Maven	6.0.30 to 6.0.33	6.0.35
`org.apache.tomcat:tomcat` Maven	7.0 up to 7.0.22	7.0.22
`tomcat6` Debian:6.0 From an advisory covering 10 CVEs	before 6.0.35-1+squeeze2, plus listed versions 6.0.28-106.0.28-96.0.28-9+squeeze16.0.32-16.0.32-2 Show 7 moreShow less 6.0.32-36.0.32-46.0.32-56.0.32-66.0.32-76.0.33-16.0.35-1	6.0.35-1+squeeze2
`org.apache.tomcat:tomcat` Maven	6.0.30 up to 6.0.35	6.0.35
`tomcat6` Red Hat:jboss_enterprise_web_server:1::el5 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6-admin-webapps` Red Hat:jboss_enterprise_web_server:1::el5 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6-docs-webapp` Red Hat:jboss_enterprise_web_server:1::el5 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6-el-1.0-api` Red Hat:jboss_enterprise_web_server:1::el5 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6-javadoc` Red Hat:jboss_enterprise_web_server:1::el5 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6-jsp-2.1-api` Red Hat:jboss_enterprise_web_server:1::el5 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5

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Affected packages
Package	Affected	Fixed
`tomcat6-lib` Red Hat:jboss_enterprise_web_server:1::el5 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6-log4j` Red Hat:jboss_enterprise_web_server:1::el5 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6-servlet-2.5-api` Red Hat:jboss_enterprise_web_server:1::el5 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6-webapps` Red Hat:jboss_enterprise_web_server:1::el5 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6` Red Hat:jboss_enterprise_web_server:1::el6 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6
`tomcat6-admin-webapps` Red Hat:jboss_enterprise_web_server:1::el6 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6
`tomcat6-docs-webapp` Red Hat:jboss_enterprise_web_server:1::el6 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6
`tomcat6-el-1.0-api` Red Hat:jboss_enterprise_web_server:1::el6 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6
`tomcat6-javadoc` Red Hat:jboss_enterprise_web_server:1::el6 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6
`tomcat6-jsp-2.1-api` Red Hat:jboss_enterprise_web_server:1::el6 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6
`tomcat6-lib` Red Hat:jboss_enterprise_web_server:1::el6 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6
`tomcat6-log4j` Red Hat:jboss_enterprise_web_server:1::el6 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6
`tomcat6-servlet-2.5-api` Red Hat:jboss_enterprise_web_server:1::el6 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6
`tomcat6-webapps` Red Hat:jboss_enterprise_web_server:1::el6 From an advisory covering 10 CVEs	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2011-3375 is a medium vulnerability (CVSS 5.0) in Apache Tomcat, published January 19, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 6.33%, the 93rd percentile. Fixed in org.apache.tomcat:tomcat 6.0.35.

References

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